3.15% is the change from 634 to 654
Calculation steps:
[( 654 - 634 ) ÷ 634] x 100 = 3.15%
Formula
Percentage change = [(654 - 634) / 634] x 100
Subtract the new number by the original number
654 - 634 = 20
20 ÷ 634 = 0.031545741324921134
0.031545741324921134 x 100 = 3.15%